CN103115420B - Automatic control system of air conditioner of clean operating room in hospital - Google Patents
Automatic control system of air conditioner of clean operating room in hospital Download PDFInfo
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- CN103115420B CN103115420B CN201310067788.3A CN201310067788A CN103115420B CN 103115420 B CN103115420 B CN 103115420B CN 201310067788 A CN201310067788 A CN 201310067788A CN 103115420 B CN103115420 B CN 103115420B
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- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 11
- 238000004378 air conditioning Methods 0.000 claims abstract description 7
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Abstract
一种医院洁净手术室空调的自动控制系统，主要解决现有技术存在的系统造价较高，安全性能及网络升级中急待解决的问题。该系统包括两台工控机、PLC控制器及手术室操作面板三个部分。所述工控机与PLC之间通过以太网交换机连接，PLC与手术室操作面板通过RS485方式连接。对于1、2级手术室净化机组的控制方式采用RS485通讯实现1机组PLC对1个手术室操作面板。对于3、4级手术室的机组控制方式，采用RS485通讯实现1机组PLC对3个手术室操作面板。其另外1机组PLC是用来分别控制新风和走廊空调机组。本发明可节省PLC的成本，也使得系统维护变得简便。
An automatic control system for an air conditioner in a clean operating room in a hospital, which mainly solves the urgent problems of high system cost, safety performance and network upgrade in the prior art. The system includes three parts: two industrial computers, PLC controller and operating room operation panel. The industrial computer is connected to the PLC through an Ethernet switch, and the PLC is connected to the operating room operation panel through RS485. For the control method of the purification unit of the 1st and 2nd operating room, RS485 communication is used to realize the PLC of 1 unit to 1 operating room operation panel. For the unit control mode of the 3rd and 4th operating room, use RS485 communication to realize 1 unit PLC to 3 operating room operation panels. The other 1 unit PLC is used to control the fresh air and corridor air conditioning units respectively. The invention can save the cost of PLC, and also makes the system maintenance easy.
Description
技术领域technical field
本发明涉及一种医院洁净手术室空调的自动控制系统，属于计算机应用及自动化技术领域。The invention relates to an automatic control system for an air conditioner in a hospital clean operating room, which belongs to the technical field of computer application and automation.
背景技术Background technique
现有的医院洁净手术室空调的自动控制系统，目前采用的是一台工控机(上位机)，通过ProfiBus DP(现场工业分布式总线)与每个空调机组控制器中的PLC控制器相连接，再采用每个手术室内的控制面板与PLC控制器进行1对1的RS485方式进行通讯、温湿度采集。即每个室内控制面板需要对应一个PLC控制器，这样使得系统的组成造价高，且不利于今后向物联网方向升级，工控机的安全性能比较差。The existing automatic control system of the air conditioner in the clean operating room of the hospital currently uses an industrial computer (upper computer), which is connected to the PLC controller in each air conditioning unit controller through ProfiBus DP (field industrial distributed bus) , and then use the control panel in each operating room to communicate with the PLC controller in a 1-to-1 RS485 mode for communication and temperature and humidity collection. That is, each indoor control panel needs to correspond to a PLC controller, which makes the composition of the system expensive, and is not conducive to future upgrades to the Internet of Things, and the security performance of the industrial computer is relatively poor.
发明内容Contents of the invention
本发明是以解决上述问题为目的，主要解决现有技术存在的系统造价较高，安全性能及网络升级中急待解决的问题。The purpose of the present invention is to solve the above problems, and mainly solve the urgent problems of high system cost, safety performance and network upgrade existing in the prior art.
为实现上述目的，本发明采用下述技术方案：一种医院洁净手术室空调的自动控制系统，该系统包括两台工控机、PLC控制器及手术室操作面板三个部分。所述工控机与PLC控制器之间通过以太网交换机连接，PLC控制器与手术室操作面板通过RS485方式连接。对于1、2级手术室净化机组的控制方式采用RS485通讯实现1机组PLC控制器对1个手术室操作面板。对于3、4级手术室净化机组的控制方式，采用RS485通讯实现1机组PLC控制器对3个手术室操作面板。其另外1机组PLC控制器是用来分别控制新风和走廊空调机组。上述两台工控机中的一台工作时，另一台备用。In order to achieve the above object, the present invention adopts the following technical solutions: an automatic control system for air conditioners in clean operating rooms in hospitals, the system includes three parts: two industrial computers, a PLC controller and an operating room operating panel. The industrial computer is connected to the PLC controller through an Ethernet switch, and the PLC controller is connected to the operating room operation panel through RS485. For the control method of the purification unit of the 1st and 2nd operating room, RS485 communication is used to realize the PLC controller of 1 unit to 1 operating room operation panel. For the control mode of the purification unit of the 3rd and 4th operating room, the RS485 communication is used to realize the PLC controller of 1 unit to the 3 operating room operation panels. The PLC controller of the other 1 unit is used to control the fresh air and corridor air-conditioning units respectively. When one of the above two industrial computers is working, the other is in standby.
本发明的特点和有益效果：由于采用工控机大幅度地提高系统的可靠性，又可满足物联网方向升级的需求。在本发明的控制系统中对于3、4级手术室净化机组的控制方式，采用RS485通讯实现1机组PLC控制器控制3个手术室操作面板，可节省PLC控制器的成本，也使得系统维护变得简便，性能可靠。The characteristics and beneficial effects of the present invention: the reliability of the system is greatly improved by adopting the industrial computer, and the requirement of upgrading in the direction of the Internet of Things can be met. In the control system of the present invention, for the control mode of the 3rd and 4th-level operating room purification units, RS485 communication is used to realize the PLC controller of 1 unit to control 3 operating room operation panels, which can save the cost of the PLC controller and also make the system maintenance easier. Simple and reliable performance.
附图说明Description of drawings
图1是本发明控制系统的结构框图。Fig. 1 is a structural block diagram of the control system of the present invention.
图2是本发明控制系统中对于3、4级手术室净化机组的控制流程框图。Fig. 2 is a block diagram of the control flow for the 3rd and 4th operating room purification units in the control system of the present invention.
具体实施方式Detailed ways
实施例Example
参照图1，一种医院洁净手术室空调的自动控制系统，该系统包括两台工控机、PLC控制器及手术室操作面板三个部分。所述工控机与PLC控制器之间通过以太网交换机连接，PLC控制器与手术室操作面板通过RS485方式连接。对于1、2级手术室净化机组的控制方式采用RS485通讯实现1机组PLC控制器对1个手术室操作面板的控制。对于3、4级手术室净化机组的控制方式，则采用RS485通讯实现1机组PLC控制器对手术室操作面板A、手术室操作面板B及手术室操作面板C进行控制。其另外1机组PLC控制器是用来分别控制新风和走廊空调机组。上述两台工控机中的一台工作时，另一台备用。Referring to Figure 1, an automatic control system for air conditioning in a clean operating room in a hospital, the system includes three parts: two industrial computers, a PLC controller and an operating room operating panel. The industrial computer is connected to the PLC controller through an Ethernet switch, and the PLC controller is connected to the operating room operation panel through RS485. For the control method of the purification unit of the 1st and 2nd operating room, RS485 communication is used to realize the control of the PLC controller of 1 unit to the control panel of 1 operating room. For the control mode of the 3rd and 4th grade operating room purification units, RS485 communication is used to realize the PLC controller of 1 unit to control the operating room operation panel A, operating room operation panel B and operating room operation panel C. The PLC controller of the other 1 unit is used to control the fresh air and corridor air-conditioning units respectively. When one of the above two industrial computers is working, the other is in standby.
参照图2，本发明的控制系统中对于3、4级手术室净化机组的控制流程：With reference to Fig. 2, in the control system of the present invention, for the control flow of 3, 4 operating room purification units:
从上电开始，然后进行初始化参数，判断中断时间1到否，到时调用手术室操作面板A数据读写子程序，然后返回。再判断中断时间2到否，到时调用手术室操作面板B数据读写子程序，然后返回。再判断中断时间3到否，到时调用手术室操作面板C数据读写子程序，并返回主程序进行数据更新、数据运算，然后调用PID调节子程序，再返回主程序I/O寄存器刷新程序扫描结束返回。Start from power-on, then initialize the parameters, judge whether the interrupt time is 1 or not, call the operation room operation panel A data reading and writing subroutine when the time comes, and then return. Then judge whether the interrupt time 2 is reached or not, call the data reading and writing subroutine of the operating room operation panel B at that time, and then return. Then judge whether the interrupt time is 3 or not, then call the operation room operation panel C data reading and writing subroutine, and return to the main program for data update and data calculation, then call the PID adjustment subroutine, and then return to the main program I/O register refresh program Return after scanning.
上述PID调节子程序，是为设定温湿度值与检测手术室操作面板实测值进行比较，调节输出，输出给系统中调节阀门信号。The above-mentioned PID adjustment subroutine is to compare the set temperature and humidity value with the measured value of the operating room operation panel, adjust the output, and output the signal to the adjustment valve in the system.
工控机优选研华工控机、PLC控制器采用西门子公司的S7200系列产品、手术室操作面板选用带有RS485通讯接口、温湿度传感器的单片机产品。The industrial computer is preferably Advantech industrial computer, the PLC controller adopts S7200 series products of Siemens, and the operating room operation panel adopts single-chip products with RS485 communication interface and temperature and humidity sensors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310067788.3A CN103115420B (en) | 2013-03-04 | 2013-03-04 | Automatic control system of air conditioner of clean operating room in hospital |
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| CN201310067788.3A CN103115420B (en) | 2013-03-04 | 2013-03-04 | Automatic control system of air conditioner of clean operating room in hospital |
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| CN103115420B true CN103115420B (en) | 2015-03-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103514515A (en) * | 2013-09-24 | 2014-01-15 | 无锡柏瑞科技有限公司 | Project cost list service system based on things of internet technique |
| CN103925679A (en) * | 2014-05-06 | 2014-07-16 | 杨晓林 | Energy-saving management and control system of medicine clean air conditioner |
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| JP2011226770A (en) * | 2010-03-29 | 2011-11-10 | Shimizu Corp | Air conditioning system |
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